If you ask one student to toss a coin three times,what is the probability that it lands heads once?
A).125
B).250
C).333
D).375

Question

Quizplus · Accepted Answer

The probability of getting exactly one head in three coin tosses is calculated by considering the different ways one head (H) and two tails (T) can occur: H T T, T H T, and T T H. Each of these outcomes has a probability of (1/2)^3 = 1/8, since each coin toss is independent. Since there are three such outcomes, the total probability is 3 * (1/8) = 3/8 = .375.

If You Ask One Student to Toss a Coin Three